apteryx@ucbvax.BERKELEY.EDU (Brian Peterson) (01/19/87)
Is it safe to turn off the monitor while leaving the computer on? The screen-blank programs are fine for saving phosphors, but they don't do anything for ears. If it isn't ok for the computer to have the monitor turned off while the computer is still on, is there any way to fix it up (hardware ?) so that it is ok? Thanx! Brian Peterson (...!ihnp4!ucbvax!brianp)
jafischer@watrose.UUCP (01/20/87)
In article <16923@ucbvax.BERKELEY.EDU> apteryx@ucbvax.BERKELEY.EDU (Brian Peterson) writes: >Is it safe to turn off the monitor while leaving the computer on? I do it _all_ the time, with no apparent side affects. -Jonathan Fischer
apratt@atari.UUCP (Allan Pratt) (01/20/87)
> [paraphrase] Is it safe to leave the computer on and the monitor off? Yes. You may know about the "monochrome detect" line on those monitors, and that changing monitors in a running system causes it to reboot, and you may think that the monitor has to be on to assert this, but no: you can leave the monitor on or off with impunity. /----------------------------------------------\ | Opinions expressed above do not necessarily | -- Allan Pratt, Atari Corp. | reflect those of Atari Corp. or anyone else. | ...lll-lcc!atari!apratt \----------------------------------------------/
actor@percival.UUCP (Clif Swinford) (01/21/87)
So far as I can tell it does no harm to turn off the monitor while leaving the
computer on. If it DOES hurt anything, I'm in trouble, since my ST has been on
almost continuously for 1.5 years now. I just turn off the monitor & leave the
rest of the system on...
Clif Swinford
..!tektronix!reed!percival!actor (UUCP)
fnordfranco@iuvax.UUCP (01/23/87)
Ever since my friend's power supply (520ST) blew up when switched on I have had the feeling that power on/off cycles were more damaging to the power supply than the computer or monitor. At first this may not seem too serious but in his case the power supply took the whole computer with it because there is no overvoltage protection (at least that is the way it appears to me). Could it be that it is safe to switch the computer and monitor on and off any way you like but not so safe if the power supplies are switched on/off? If switching power supplies on/off is less safe does that mean the 1040 is inherently more at risk of failure in such situtations than the 520 since, in the case of the latter, the supplies can be left on all the time and power controlled by the switches on the computer and drives? BTW I have replaced my computer power supply with a 7A job that has OV protection (I got it for $25 a few years ago at Canal St. in NYC (it's surplus)) and feel much safer now. Next, I am going to replace the mouse if I can find a nice one that is compatible. Anyone have any suggestions? franco@indiana.csnet
jtr485@umich.UUCP (01/23/87)
In article <395@percival.UUCP>, actor@percival.UUCP writes: > So far as I can tell it does no harm to turn off the monitor while leaving the > computer on. If it DOES hurt anything, I'm in trouble, since my ST has been on > almost continuously for 1.5 years now. I just turn off the monitor & leave the > rest of the system on... > Clif Swinford How about HD's. Will it cause any problems if I ship the head and turn of the hard disk? If not I will start leaving my ST on and turn of the other units (HD, floppies, monitor). --j.a.tainter
stevens@uwmacc.UUCP (01/26/87)
Concerning turning the power supply on and off (vs. turning
the computer itself on and off). I have a very early
model of the ST and worried a lot when I read reports
of the early power supplies zapping the computer. Just
by accident I have always turned the supply on and off
at the wall switch and, for 1-1/2 years have had no problems.
I wonder if the early model supplies were producing extra
high voltage under no-load conditions. Then when you turn
the computer on, you would apply too high a voltage to it
for several milliseconds. Turning it on at the wall
switch would avoid the problem.
--
ARPA: stevens@unix.macc.wisc.edu Paul Stevens
UUCP: ...{seismo|allegra|agkua}!uwvax!uwmacc!stevens 1210 W. Dayton St.
BITNET: stevens@wiscmacc Madison WI 53706
608/262-9618